Combination gas-burner and water-heater.



G. PAHL. COMBINATION GAS BURNER AND WATER HEATER.

APPLICATION FILED OGT.2, 1911.

1,124,646. Patented Jan. 12, 1915.

2 SHEETS-SHEET 1.

G. PAHL. COMBINATION GAS BURNER AND WATER HEATER. APPLICATION FILED 0QT.2,191L

1,124,646. Patented Jan. 12, 1,915.

2 SHEETS-SHEET 2.

'IHE NORRIS PETERS CO. PHOTOLITHOH WASHINGTON. D. C.

UNTTED PATENT @FFTQE.

GUSTAV PAI-IL, OF CHICAGO, ILLINOIS.

COMBINATION GAS-BURNER AND WATER-HEATER.

maaeae.

Application filed October 2, 1911.

T 0 all whom it may concern Be it known that I, GUs'rAv PAHL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Combination Gas- Burners and Tater-Heaters, of which the following is a Specification.

This invention relates to a combination gas burner and water heater; and has for its main object to provide an arrangement of this character for utilizing heat that is now lost or wasted under ordinary conditions.

The more especial purpose of this invention is to combine in a gas-stove burner, a water circulating and heating feature which has a suitable circulating connection with a water reservoir or boiler used for domestic purposes.

Figure 1 is a plan of a burner embodying the improved features. Fig. 2 is a vertical transverse section on line 2, Fig. 1. Fig. 3 is a horizontal section on line 3, Fig. 2. Fig. 4: is a vertical transverse section on line 4, Fig. 1.

The body or base of the burner as a whole, will ordinarily consist of a casting having cored out-passages or chambers for a proper circulation of the gas and water.

A indicates the gas-inlet connection, B the outlet water connection, and C the inlet water connection.

The hollow base-part 5 of the burner body is provided with an annular tubular passage 6 through which the water circulates in the operation of heating. A tubular ring 7 is supported above and outside of a burner-plate or top 8 and entirely surrounds the same and is spaced apart therefrom, as best shown in Fig. 1. The inlet water connection C opens into the annular circulating passage 6, as shown in Fig. 2. The passage 6 connects with tubular ring 7 through vertical passages 9, 10 and 11, formed in hollow lugs 12, 13 and 14, as shown in Figs. 1, 2 and 3. The hollow lugs form a supporting connection between the body or base 5 and the tubular ring 7, and are disposed at intervals.

The body or base structure is provided with a number of radially disposed gaspockets 15, as best shown in Fig. 8. These pockets open away from the annular gas chambers D in distributing the gas supply under the burner-plate 8 provided with burner perforations 16. The pockets 15 are Specification of Letters Patent.

Patented Jan. 12, 1915.

Serial No. 652,439.

spaced apart by casting walls 17. The depressions 18 in the burner-plate 8, provides for a free circulation of air between and along the line of burner openings in maintaining proper combustion.

The tubular ring 7 has an open space underneath so that the escaping waste heat can pass under as well as over the top of the same, thus greatly increasing the area of the water heating surface. The inner circumferential surface of the ring 7 also presents a large area against which the heat or flame will impinge direct when a culinary vessel is seated on the burner. The heat deflected downward is absorbed by the top wall covering the water circulating passage 6, so that the incoming volume is heated to a certain degree before passing up into ring 7.

The ring 7 is provided on its upper side with a number of ribs 19 disposed at intervals around the circumference thereof, and which form a rest or seat for culinary or other vessels that may be placed thereon. These ribs support a vessel a little above the surface of the ring and provide for the escape of the heat or flame all around in maintaining combustion.

By this arrangement the water to be heated flows into the lower circulating passage 6 through the inlet connection C with the reservoir (not shown) and then passes up into the circulating ring 7, through the hollow connecting lug passages and is then returned to the reservoir through the outlet connection B, the operation being continuous.

This device presents dual water circulating passages in and around the burner, one passage being located under the burnerplate and the other above, thus greatly increasing the heating surface without proportionately increasing the dimensions of the burner as a whole, beyond that of the ordinary type. The construction and arrangement is such that only the heat is utilized that is ordinarily wasted, the heat deflected downward and that portion escaping laterally above the burner-plate. The water circulating ring 7 lies in a plane out-' side of and surrounding the burner-plate and positioned to receive and absorb the greater portion of the escaping heat and out of the way as against obstructing a direct application of the flames to the bottom of a vessel or culinary utensil placed over the burner.

A flame spreader consists of a number of short arms 21 and long arms 22, radiating from a hub 23, as shown in Figs. 1 and 2. One of the long arms is provided on its outer end with a jaw 24 adapted to engage the inner end of one of the ribs 19; the other long arms abutting against other ribs at equidistant points, whereby the spreader is loosely retained in place and may be removed or replaced with facility. The hub 23 of the spreader seats on a bridge 24 extending across the central air opening 25.

It will be understood that this improved water heating burner is not only adapted to be applied to new gas-stoves, in the course of manufacture, but may be substituted for the burners on stoves in use.

Having thus described my invention, what I claim is e 1. A burner-structure of the class described, comprising a base-part having an annular water circulating passage therein, a burner-plate located above said passage, a tubular ring located above said burnerplate and entirely surrounding the same and spaced apart therefrom, and the hollow circulating connections between said base and ring.

2. A burner structure of the class described, comprising a hollow base, a tubular ring having a water circulating connection therewith, and a burner-plate located between said hollow base and said tubular ring,

In testimony whereof I aflix my signature in presence of two witnesses.

GUSTAV PAHL.

Witnesses A. H. STANTON, M. J. KIRKLAND.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents,

Washington, D. G." 

